Waxing attachment for paper machines



March 20, 1934. K. M. THoRsl-:N

WAXING ATTACHMENT FOR PAPER MACHINES Original.- Filed Deo.

l, 1931 3 Sheets-Sheet l WIIIIIIIIIJ fui March 20, 1934. K. M. THORSEN WAXING ATTACHMENT FOR PAPER MACHINES 3 Sheets-Sheet 2 Original Filed Dec. l, 1931 fllorney March 20, 1934.. K, M. THoRsr-:N

` WAXING ATTACHMENT FOR PAPER MACHINES Original Filed Dec. l, 1931 3 Sheets-Sheet 3 ma x ,/l [tome y Patented Mar. 20, 1934 UNITED STATES WAXING ATTACHMENT FOR PAPER MACHINES Kari M. Thorsen, Muskegon, Mich., assignor to Central Paper Company, Muskegon, Mich., a

corporation of Michigan i A Application December. 1, 1931, Serial No. 578,395

Renewed August 18, 1933 9 claims. (ol. :i2- 40) My .nvention relates to a--waxing attachment for a paper making or finishing machine whereby waxing may be accomplished simultaneously with the making and finishing of the paper by such a machine.

It is an important object of my invention to provide an attachment of the type `described which enables the complete displacement of the usual waxing machine, usually provided as a separate unit or'entity in a paper making factory,

and to provide that the waxed paper shall be delivered from the finishing machine.

It is also an important object of this invention to provide an attachment of the character described above which may be adjusted or multiplied in number, so as to vary the number and character of applications of the treating substances uti@ lized in producing thewaxing of the paper.

It is also an object of this invention to provide an attachment of the type described which supplies means of treating a continuous web of paper as it is being manufactured on the paper machine With such treating material or materials as will yield paper having'the same characteristics as ordinary waxed paper.

will be apparent during the courseof the following description. In the accompanying drawings forming a part of the specification and in which like numerals are employed to designate .like parts throughout the same:

Figure 1 is a generaldiagrammatic view of the attachment of my invention showing also in dotted line a conventional paper making `machine, and the application of the device of the invention thereto.V

Figure 2 is a top view of one of the water boxes shown in relation to a calender roll.l Figure 3 is vertical transverse section through Figure 2 further illustrating the character of the water box and in relation to the calender rolls. Figure 4 is a vertical transverse sectional view through the main supply tank.

Figure 5 is a similar view through "one of auxiliary supply tanks.

Figure 6 is a sectional view of the steam jacketed pipe lines for carrying the treating substances. In the drawings wherein for the purposes of illustration is shown a preferred embodiment of 'my invention, the numeral 5 generally designates a conventional calender stack, which in itself n forms no part of my invention. The stack is pro-- vided with the usual plurality of vertically superposed rolls 6 which feed the paper 7 to thedrier cylinder 8. The attachment of my invention comthe prises the main V'supply tank for the treating fluid indicated at 9 which is provided with steam coils 10 inX the bottom thereofior maintaining the treating substances at the desired temperature. A suitable circulating pump 11 drawstreating l0 substance from the main supply tank 9 and conveys it through the conduit or pipe 12 provided with the steam jacketed construction 13. All of the piping between the various elements of the invention is provided steam jacketed in order to 05 maintain the treating substances at the proper temperature. `In a suggested set up. a vertical conduit rises to a height above the calender stack where it is provided with an elbow 14 the construction of which is better seen in Figure 6. All T0 of the angular joints of the piping are similarly -formed A horizontal portion 15 of the piping leadsinto the auxiliary supply tank 16, which contains steam coils 17 fed from the steam jacketing as indicated at 18. Steam supply pipes are Y6 indicated by the numerals 19 and may feedinto the device atproper points. The auxiliary supply tank 16 is provided with an overflow pipe 20 which empties gravitationally into the main supa v fply tank 9. Other objects and advantages of the invention An important feature of the invention and the one upon which the active principle thereof dey pends, is called by me a water box. In the set up shown in Figure 1, the waterlboxes are designated by the numerals 21.

revolving calender rolls pick up an amount of vthe treating substance or waxing materials deposited thereon from the Water box, which substances lor waxing materials are absorbed by the i0 paper web as the web passes between the calender roll contacted and' its companion roll and other rolls without interruption to the paper making process carriedbythe machine. The num-i ber of the water boxes employed and the charmental 'side walls 24 merging toward the inward 1 end of the water box. The inward side of the m5 water box is open so as to permit the gravitational transfer of the iluid content 25 to the calender roll 6 as seen in Figure 3.y A suitable spreading means 26 or a suitable roll cleaning device may be attached to the bottom plate of the water box 11 They are supported 86- in conjunction with the calender rolls, sothat the y as shown in Figure 3. The water box is generally elongated as indicated in Figure 2 and centrally of `the bottom plate a suitable collar 27 receives an overflow pipe 28 which functions to maintain the, proper level of waxing fluid or treating material in the box. Above and spaced from the level of the said fluid and' within the water box is a fluid delivery pipe 29 having the discharge apertures 30 in the bottom thereof distributed throughout its'length. A suitable steam heating pipe `31 is placed at the junction of the bottom plate and the outward wall 22 to maintain the treating fluid at the proper temperature.

It is believed that it will now be obvious that I have provided adequate structure to carry out the principles of` the invention whereby paper may be waxed or otherwise treated during the process of making and finishing the` paper in a' conventional paper making and finishing machine, without interruption to the operations thereof, thus achieving the marked economy of eliminating the use of an entirely separate and additional waxing machine together .with its additional time consuming and expensive malntenance and operation.

It is to be understood that the form of my invention herewith shown and described is to be taken as the preferred embodiment of the same,

` and that various changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of my invention or the scope of the subjoined claims.y

What is claimed isz- 1. A method of treating paper in a finishing machine comprising collecting treating fluid at a point immediately adjacent to at least one but not all of a plurality of cooperating contacted rollers of the finishing machine, and heating the fluid while 'applying the same directly`to the roller or rollers whereby the treated fluid is conveyed to and upon the roller or rollers to which it is not directly applied, and passing paper through the machine so as to engage the paper only with the last mentioned roller or rollers.

2. A paper treating attachment for applying Y treating fluid to a roller of a calendar and the like, comprising a box elongated according to the' width of the space on the roller to receive the fluid, means supportingethe box in conjunction with the roller, said-box being open atthe roller sidefthereo'f for enabling the transfer of fluid from the box to the roller, roller wiping and fluid distributing means carried by the box, and 'heating means in the box for heating the fluid therein.

3. A paper treating attachment for applying treating fluid to a. roller of a )calendar and the llike, comprising a box elongated according to the width of the space of the roller to receive the fluid, means supporting the box in conjunction with the roller, said box being open at the roller side thereof for enabling the transfer of fluid from the box to the roller, roller wiping and fluid distributing means carried by a lower part of the box, the lower edge of the opening in the roller sideiof the box being spaced from the roller, said roller wiping and fluid distributing means being located so as to bridge the space between the said edge of the opening and the roller, and heating means within the box for heating the fluid like, comprising a box elongated according to the width of the space on the roller to receive the fluid, means supporting the box in conjunction weier with the roller, said box being open at the roller side thereof for enabling the transfer of fluid from thebox to the roller, roller wiping and fluid distributing means carried by the box, a portion of the bottom of the box being depressed whereby a greater depth of treating fluid is maintained at one side of the box, and heating means located near the depressed portion of the bottom of the box.

5. A paper treatingattachment for applying treating fluid to a roller of a calendar and the like, comprising a box elongated according to the width of the space on the roller togreceive the fluid, means supporting the box in conjunction with the roller, ,said box being open at the roller side thereof for enabling thet'ransfer of fluid from the box to the roller, roller wiping and fluid distributing means carried by the lower part f the bex, the lower part of the box being inclined downwardly away from the roller wherelby a Ygreater depth of treating fluid is obtained at the side of the box removed from the roller, heating means located in the box at the side removed from the roller 'and normally submerged in said greater depth of treating fluid.

6. A paper treating attachment for applying treating fluid to a roller of a calendar and the like, comprising a box elongated according to the width of the space on the roller to receive the fluid, eans supporting th'e box in conjunction with t e roller, said box being open at the roller side thereof for enabling the transfer of fluid from the box to the roller, roller wiping and fluid distributing means carried by the lower part of the box, the lower part of the box being inclined downwardly away from the roller whereby a greater depth treating fluid is obtaining at the side of the box removed from the roller, heating means located in the box at the side removed from lthe roller and normally submerged in said greater depth of treating fluid, and overhead fluid supply means for thev box extending longitudinally thereof.

7. A paper treating attachment for applying treating fluid to a roller of a calendar and the like, comprising a box elongated according to the width of the space on the roller to receive theffluid, means supporting the box in conjunction with the roller, said box being open at the roller side thereof for enablingthe transfer of fluid from the box tothe roller, roller wiping-and flud'distributing means carried by the lower part of the box, the lower part of the box being inclined downwardlyaway from the roller whereby a greater depth of treating fluid is obtained at the side of the box removed from the roller, heating means located in the box at the side removed from the roller and normally submerged in said greater depth` of treating fluid, and overhead fluid supply means for the box extending longitudinally thereof, and overflow means extended through the lower part of the box to the required level therein.

8. A paper treating attachment for applying treating fluid to a roller of a calendar and the like, comprising a box elongated according to the width of the space on the roller to receive the fluid, means supporting the box in conjunction with the roller, said box being open at the roller side thereof .for enabling the transfer of fluid from the box to the roller, roller wiping and fluid distributing means carried by the lower part of the box, the lower part of the box being inclined downwardly away from the roller whereby a greater depth ofL treating fluid is obtained at the side of the box removed from the roller, heating means mamar located in the box at'the side removed from the roller and normally submerged in said greater depth of treating fluid, and overhead fluid supply means for the box extending longitudinally thereof and overflow means extended through the lower part of the box to the required level tlfiere-` in, and steam jacketed fluid conveying means feeding the fluid supply means.

9. The method of treating paper ina fnisliirig 

